Re: question: the number of connections in ceph

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Last time I read through the code, there were a limited number of “extra” peerings added to the acting set OSDs too.

But it’s a bit unclear what a “connection” means. And if that includes clients.

> On Aug 28, 2020, at 12:56 PM, Sam Just <sjust@xxxxxxxxxx> wrote:
> 
> I you're asking about the osd<->osd connection count for a particular
> osd, it'll be proportional (two hearbeat connections and a cluster
> connection per pair I think) to the number of osds that osd shares a
> pg with (num_pgs/num_osds * (pool_size - 1)).
> -Sam
> 
> On Thu, Aug 27, 2020 at 1:38 AM Yin, Congmin <congmin.yin@xxxxxxxxx> wrote:
>> 
>> Hi ,
>> 
>> 
>> 
>> I want to know the number of connections in CEPH. I think the connection is mainly OSD connection.
>> 
>> Is the following statement correct?
>> 
>> Each OSD is connected with other OSDs, and there may be more than one connection between two OSDs.
>> 
>> If there is only one connection per OSD, the number of the connection is N(N-1)/2,. If there are k connections per OSD, the number of the connection is kN(N-1)/2.
>> 
>> 
>> 
>> Thanks for your help.
>> 
>> 
>> 
>> Best regards.
>> 
>> Congmin Yin
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Dev mailing list -- dev@xxxxxxx
>> To unsubscribe send an email to dev-leave@xxxxxxx
> _______________________________________________
> Dev mailing list -- dev@xxxxxxx
> To unsubscribe send an email to dev-leave@xxxxxxx
_______________________________________________
Dev mailing list -- dev@xxxxxxx
To unsubscribe send an email to dev-leave@xxxxxxx




[Index of Archives]     [CEPH Users]     [Ceph Devel]     [Ceph Large]     [Information on CEPH]     [Linux BTRFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux